Introduction
Thank you for purchasing the Proscan PSP333 Portable Bluetooth Speaker. This manual provides important safety instructions, operational guidelines, and maintenance tips to ensure optimal performance and longevity of your device. Please read this manual thoroughly before using the product and retain it for future reference.
Safety Information
- Do not expose the unit to extreme temperatures, direct sunlight, or high humidity.
- Avoid dropping or subjecting the speaker to strong impacts.
- Do not disassemble or attempt to repair the unit yourself. Refer all servicing to qualified personnel.
- Keep the speaker away from water and other liquids.
- Use only the specified charging cable.
- Ensure proper ventilation when operating the speaker.
Package Contents
Please check that the following items are included in your package:
- Proscan PSP333 Portable Bluetooth Speaker
- USB Charging Cable
- User Manual (this document)
Product Features
The Proscan PSP333 speaker offers a range of features for an enhanced audio experience:
- Wireless Bluetooth connectivity for streaming audio from compatible devices.
- Integrated LED lights for visual ambiance.
- Built-in FM radio for listening to local stations.
- Auxiliary (AUX) input for wired connection to non-Bluetooth devices.
- Adjustable Bass, Treble, and Volume controls.
- Rechargeable battery for portable use.
- Convenient carrying handles that also function as a built-in stand.
- Output Power: 2 x 3W (6-Watt-RMS total).
Controls and Connections
Familiarize yourself with the control panel and connection ports of your speaker.

Figure 1: Front view of the Proscan PSP333 speaker, highlighting the speaker grilles and the central control interface.

Figure 2: Detailed view of the speaker's control panel, illustrating the various buttons and adjustment knobs.
Control Panel Functions:
- SOURCE Button: Press to switch between Bluetooth, FM Radio, and AUX input modes.
- ◀◀ (Previous Track/Tune Down) Button: In Bluetooth mode, press to go to the previous track. In FM mode, press to tune down the frequency.
- ▶▶ (Next Track/Tune Up) Button: In Bluetooth mode, press to go to the next track. In FM mode, press to tune up the frequency.
- ►/PAIR Button: Press to Play/Pause audio. Press and hold to initiate Bluetooth pairing mode. In FM mode, press and hold to auto-scan for stations.
- BASS Knob: Rotate to adjust the bass level.
- TREBLE Knob: Rotate to adjust the treble level.
- VOLUME Knob: Rotate to adjust the overall volume output.
- AUX Input: 3.5mm jack for connecting external audio devices via an auxiliary cable (not included).
- Charging Port: For connecting the USB charging cable.
Setup
Initial Charging:
- Before first use, fully charge the speaker. Connect the small end of the included USB charging cable to the charging port on the speaker.
- Connect the larger end of the USB cable to a USB power adapter (not included) or a computer's USB port.
- The charging indicator light will illuminate. Once fully charged, the light may change color or turn off (refer to specific indicator behavior if detailed in product).
- A full charge typically takes several hours.
Powering On/Off:
- To power on the speaker, locate the power switch (usually on the back or side) and slide it to the 'ON' position.
- To power off, slide the switch to the 'OFF' position.
Operating Instructions
Bluetooth Mode:
- Power on the speaker. It will automatically enter Bluetooth pairing mode, indicated by a flashing LED light (e.g., blue LED).
- If the speaker is not in Bluetooth mode, press the SOURCE button until the Bluetooth indicator light flashes.
- On your mobile device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "PSP333" or "Proscan Speaker" from the list of devices.
- Once paired, the Bluetooth indicator light will stop flashing and remain solid. You can now play audio from your device through the speaker.
- Use the ◀◀, ▶▶, and ►/PAIR buttons on the speaker or your device to control playback.
AUX Input Mode:
- Power on the speaker.
- Connect one end of a 3.5mm audio cable (not included) to the AUX input port on the speaker.
- Connect the other end of the 3.5mm audio cable to the headphone jack or audio output of your external device (e.g., MP3 player, computer).
- Press the SOURCE button until the speaker is in AUX mode.
- Play audio from your external device. Volume can be controlled via the speaker's VOLUME knob and your external device.
FM Radio Mode:
- Power on the speaker.
- Press the SOURCE button until the speaker is in FM Radio mode.
- To auto-scan and save available stations, press and hold the ►/PAIR button. The speaker will scan and store stations automatically.
- Once scanning is complete, use the ◀◀ and ▶▶ buttons to navigate between the saved stations.
- For manual tuning, short press the ◀◀ or ▶▶ buttons to adjust the frequency incrementally.
LED Lights:
The speaker features integrated LED lights that illuminate the speaker cones. These lights typically activate automatically when the speaker is powered on. There may be a dedicated button or a combination of button presses to cycle through light modes or turn them off/on. (Note: Specific control for LED lights is not detailed in product description, assume automatic or simple toggle if present.)
Charging the Speaker
The Proscan PSP333 speaker is equipped with a built-in rechargeable Lithium Ion battery.
- When the battery is low, the speaker may emit an audible alert or an indicator light may flash.
- Connect the included USB charging cable to the speaker's charging port and to a suitable USB power source (e.g., 5V USB adapter, computer USB port).
- The charging indicator will show the charging status.
- Disconnect the charging cable once the battery is fully charged to preserve battery life.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the speaker. Do not use liquid cleaners or abrasive materials.
- Storage: When not in use for extended periods, store the speaker in a cool, dry place, away from direct sunlight and extreme temperatures.
- Battery Care: To maintain battery health, avoid fully discharging the battery frequently. Charge the speaker regularly, even if not in use, to prevent deep discharge.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| Speaker does not power on. | Ensure the battery is charged. Connect the speaker to a power source using the USB cable. Check the power switch is in the 'ON' position. |
| No sound from the speaker. | Increase the volume on both the speaker and the connected device. Ensure the correct source mode (Bluetooth, AUX, FM) is selected. Check audio cable connection for AUX mode. |
| Cannot pair via Bluetooth. | Ensure the speaker is in Bluetooth pairing mode (flashing LED). Make sure the speaker is within 30 ft (9 meters) of your device. Turn off and on Bluetooth on your device. Forget "PSP333" from your device's Bluetooth list and try pairing again. |
| FM radio reception is poor. | Relocate the speaker to an area with better signal. Ensure no large metallic objects are blocking the signal. |
| Distorted sound. | Reduce the volume on both the speaker and the connected device. Check Bass and Treble settings. Ensure the audio source is not distorted. |
Specifications

Figure 3: Dimensions of the Proscan PSP333 speaker, showing its length, height, and depth.
| Feature | Detail |
|---|---|
| Model Number | PSP333 |
| Output Power | 2 x 3W (6-Watt-RMS) |
| Connectivity | Bluetooth, Auxiliary (3.5mm Jack) |
| Driver Size | 3 inches |
| Wireless Range | Up to 30 ft (9 meters) |
| Power Source | Rechargeable Lithium Ion Battery |
| Product Dimensions (L x W x H) | 24.31 x 42.09 x 24.1 cm (approximately 9.57 x 16.57 x 9.49 inches) |
| Item Weight | 2.61 kg (approximately 5.75 lbs) |
| Color | Black |
Warranty and Support
This product is covered by a limited manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation provided at the time of purchase or contact the retailer. For technical support or service inquiries, please contact the customer service department of PROSCAN or your authorized dealer.
Manufacturer: Curtis International
Place of Business: Mississauga, ON L5S 2A4





